Github user steveloughran commented on a diff in the pull request:
https://github.com/apache/spark/pull/13579#discussion_r91548419
--- Diff:
core/src/main/scala/org/apache/spark/deploy/history/HistoryServer.scala ---
@@ -289,6 +289,30 @@ object HistoryServer extends Logging {
while(true) { Thread.sleep(Int.MaxValue) }
}
+ /**
+ * Create a security manager.
+ * This includes any fixup of the configurations needed to produce a
security manager
+ * capable of starting the History Server.
+ * @param config configuration for the SecurityManager constructor
+ * @return
+ */
+ private[history] def createSecurityManager(config: SparkConf):
SecurityManager = {
+ patchSecuritySettings(config)
+ new SecurityManager(config)
+ }
+
+ /**
+ * Fix up the configuration of a spark configuration so that the
security manager will
+ * always start.
+ * @param config configuration to be used in a SecurityManager
constructor
+ */
+ private def patchSecuritySettings(config: SparkConf): Unit = {
--- End diff --
I've inlined it, which highlights something else. if the debug message is
viewed as unimportant, the if() clause can be pulled completely, and the
security flag *always* set to false.
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